A security anti-disassembly structure of a desktop POS cash register

Abstract

The utility model belongs to the technical field of anti -disassembly, especially a safe anti -disassembly structure of desk type POS cash register, the sealing plate of desk type POS cash register is fixed through conventional screw, the sealing plate is easy to be disassembled, leads to the problem that the disassembly cost is very low, the present scheme is proposed, including desk type POS cash register body, the base and touch screen of desk type POS cash register body are fixedly connected through the hollow installation box of fixed setting, the mounting opening of hollow installation box lateral wall is fixed with sealing plate through six special screws. The utility model adopts special screw fixed sealing plate, the inner heptagonal recess of screw head end part and the bump structure of cylindrical block outer wall, need to specially make tool to be able to disassemble, increased the difficulty of disassembly, prevent others to easily disassemble cash register, and the annular indentation is provided on the special screw, and the sealing plate will be broken when being pried, the screw head and the threaded column are separated, so that illegal disassembly becomes more difficult.

Description

Technical Field

[0001] This utility model relates to the field of anti-tampering technology, and in particular to a secure anti-tampering structure for a desktop POS cash register. Background Technology

[0002] As a payment terminal, desktop POS cash registers store a large amount of sensitive data (such as transaction records and bank card information). The secure and tamper-proof structure of desktop POS cash registers is a key design feature to ensure equipment security and prevent unauthorized disassembly and data leakage.

[0003] Currently, desktop POS cash registers primarily rely on electronic protection. They detect whether a specific signal line in the circuit has been cut to determine if the device has been disassembled. Once an anomaly is detected, the device will automatically lock or initiate a self-destruct program, rendering the device unusable. However, the sealing plate of desktop POS cash registers is fixed with conventional screws, making it easy to remove and resulting in very low disassembly costs.

[0004] To address the aforementioned issues, this utility model document proposes a secure and tamper-proof structure for a desktop POS cash register. Utility Model Content

[0005] This utility model provides a secure anti-tamper structure for a desktop POS cash register, which solves the problem that the sealing plate of the desktop POS cash register is fixed by conventional screws, making the sealing plate easy to disassemble and resulting in very low disassembly costs.

[0006] This utility model provides the following technical solution:

[0007] A tamper-proof security structure for a desktop POS cash register includes:

[0008] The desktop POS cash register body has a base and a touch screen that are fixedly connected by a hollow mounting box. The mounting opening on the side wall of the hollow mounting box is fixed with a sealing plate by six irregular screws.

[0009] In one possible design, the threaded post of the irregular screw passes through a decreasing threaded hole in the sealing plate and is threadedly connected to a threaded groove on the side wall of the hollow mounting box.

[0010] In one possible design, the inner wall of the sealing plate is fixedly provided with four positioning blocks in a rectangular array to facilitate the alignment of the decreasing threaded holes with the corresponding threaded grooves during equipment production, and the side wall of the hollow mounting box is provided with positioning slots for inserting the corresponding positioning blocks.

[0011] In one possible design, the screw head at the end of the irregular screw has an inner heptagonal groove in the center, a cylindrical block is fixedly installed in the center of the inner wall of the inner heptagonal groove, and four protrusions are fixedly installed in a ring array on the outer wall of the cylindrical block.

[0012] In one possible design, the connection between the screw head and the threaded post on the irregular screw is provided with an annular indentation that makes it easy to break when the sealing plate is pried up.

[0013] In one possible design, both the hollow mounting box and the sealing plate are made of magnesium-aluminum alloy.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0015] The working principle and usage process of this technical solution are as follows:

[0016] During production and assembly, the sealing plate is aligned with the positioning slots on the side wall of the hollow mounting box through the four positioning blocks on its inner wall. This ensures that the decreasing threaded holes and threaded grooves correspond accurately, which helps to improve the installation efficiency of the sealing plate. Then, six special-shaped screws are used to fix the sealing plate at the installation opening of the hollow mounting box. The threaded post of the special-shaped screw is screwed into and passes through the decreasing threaded holes of the sealing plate, and then screwed into the threaded grooves on the side wall of the hollow mounting box to complete the fastening of the sealing plate.

[0017] During the unauthorized disassembly attempt, the disassembler tried to remove the sealing plate using conventional tools, but found that the screw heads of the irregular screws could not be matched. Ordinary tools could not remove it, and special tools that matched the heptagonal grooves and protrusions inside the irregular screws were required. If the disassembler tried to pry up the sealing plate with tools such as pry bars, the annular indentation at the connection between the screw head and the threaded post on the irregular screw would break due to the force, causing the screw head to separate from the threaded post, making it difficult to remove the sealing plate completely, thus making further disassembly very difficult.

[0018] This utility model has the following beneficial effects:

[0019] This utility model uses irregularly shaped screws to fix the sealing plate. The inner heptagonal groove at the end of the screw head and the protrusion structure on the outer wall of the cylindrical block require special tools to disassemble, which increases the difficulty of disassembly and prevents others from easily disassembling the cash register. In addition, the irregularly shaped screws are provided with annular indentations, which will break when the sealing plate is pried up, and the screw head will separate from the threaded column, making illegal disassembly even more difficult.

[0020] The hollow mounting box and sealing plate of this utility model are both made of magnesium-aluminum alloy. Magnesium-aluminum alloy has high strength and corrosion resistance, and can withstand greater external forces and environmental changes, thereby extending the service life of the equipment. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a security and tamper-proof structure for a desktop POS cash register provided in an embodiment of this utility model;

[0022] Figure 2 A schematic diagram of the disassembly structure of the hollow mounting box and sealing plate of a desktop POS cash register security anti-tampering structure provided in this embodiment of the utility model;

[0023] Figure 3 A schematic diagram of an irregularly shaped screw structure for a security and tamper-proof structure of a desktop POS cash register provided in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the installation structure of a single irregularly shaped screw in a hollow mounting box and sealing plate for a security and tamper-proof structure of a desktop POS cash register provided in an embodiment of this utility model.

[0025] Reference numerals in the attached diagram: 1. Desktop POS cash register body; 2. Hollow mounting box; 3. Sealing plate; 4. Irregular screw; 5. Decreasing threaded hole; 6. Threaded groove; 7. Positioning insert; 8. Positioning slot; 9. Screw head; 10. Threaded post; 11. Inner heptagonal groove; 12. Cylindrical block; 13. Protrusion; 14. Annular indentation. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0029] Example 1

[0030] Please refer to Figure 1-4 An anti-tamper structure, comprising:

[0031] The desktop POS cash register body 1 is fixedly connected to its base and touchscreen via a hollow mounting box 2. The hollow mounting box 2 houses components such as the security chip, motherboard and core processor, encrypted storage module, tamper-proof sensor matrix, power management unit, and communication module used with the desktop POS cash register body 1. The side wall of the hollow mounting box 2 has an installation opening, at which a sealing plate 3 is fixed using six irregularly shaped screws 4. The threaded post 10 of the irregularly shaped screws 4 penetrates the decreasing threaded hole 5 on the sealing plate 3 and is threadedly connected to the threaded groove 6 on the side wall of the hollow mounting box 2. Four [unclear characters] are fixedly arranged in a rectangular array on the inner wall of the sealing plate 3. A positioning block 7 is used to facilitate the alignment of the decreasing threaded hole 5 with the corresponding threaded groove 6 during equipment production; four positioning slots 8 are provided on the side wall of the hollow mounting box 2, which are used to insert the corresponding positioning block 7. During the production and assembly process, the four positioning blocks 7 on the inner wall of the sealing plate 3 are first aligned with the four positioning slots 8 on the side wall of the hollow mounting box 2, so that the decreasing threaded hole 5 and the threaded groove 6 are accurately aligned, thereby improving the installation efficiency of the sealing plate 3. Then, six special-shaped screws 4 are used to screw the threaded post 10 of the special-shaped screws 4 into and through the decreasing threaded hole 5 of the sealing plate 3, and then into the threaded groove 6 on the side wall of the hollow mounting box 2 to complete the fastening of the sealing plate 3.

[0032] The screw head 9 at the end of the irregular screw 4 has an inner heptagonal groove 11 in the center. A cylindrical block 12 is fixedly installed in the center of the inner wall of the inner heptagonal groove 11. Four protrusions 13 are fixedly installed in a ring array on the outer wall of the cylindrical block 12. An annular groove 14 is provided at the connection between the screw head 9 and the threaded post 10 on the irregular screw 4. This annular groove 14 is easy to break when the sealing plate 3 is pried up. When there is an illegal disassembly attempt, the illegal disassembler tries to use conventional tools to disassemble the sealing plate 3, but conventional tools cannot match the screw head 9 of the irregular screw 4 and cannot be disassembled. Once the disassembler uses a pry bar or other tools to pry up the sealing plate 3, the annular groove 14 at the connection between the screw head 9 and the threaded post 10 on the irregular screw 4 will break due to the force, causing the screw head 9 and the threaded post 10 to separate, making it difficult to completely remove the sealing plate 3, and thus making further disassembly very difficult.

[0033] This application can be used for the security and anti-tampering of desktop POS cash registers, and can also be used in other fields applicable to this application.

[0034] Example 2

[0035] Improvements based on Example 1:

[0036] A security anti-tampering structure for a desktop POS cash register, which is used in the field of anti-tampering structures;

[0037] Please refer to Figure 2Both the hollow mounting box 2 and the sealing plate 3 are made of magnesium-aluminum alloy. Magnesium-aluminum alloy has high strength and corrosion resistance, and can withstand greater external forces and environmental changes, thereby extending the service life of the equipment.

[0038] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0039] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A secure tamper-proof structure for a desktop POS cash register, characterized in that, include: The desktop POS cash register body (1) is fixedly connected to the base and the touch screen by a fixed hollow mounting box (2). The mounting opening on the side wall of the hollow mounting box (2) is fixed with a sealing plate (3) by six irregular screws (4).

2. The tamper-proof security structure for a desktop POS cash register according to claim 1, characterized in that, The threaded post (10) of the irregular screw (4) passes through the decreasing threaded hole (5) on the sealing plate (3) and is threadedly connected to the threaded groove (6) on the side wall of the hollow mounting box (2).

3. The tamper-proof security structure for a desktop POS cash register according to claim 2, characterized in that, The inner wall of the sealing plate (3) is fixedly provided with four positioning blocks (7) in a rectangular array to facilitate the alignment of the decreasing threaded holes (5) with the corresponding threaded grooves (6) during equipment production. The side wall of the hollow mounting box (2) is provided with positioning slots (8) for inserting the corresponding positioning blocks (7).

4. The anti-tampering structure of a desktop POS cash register according to claim 2, characterized in that, The screw head (9) at the end of the irregular screw (4) is provided with an inner heptagonal groove (11) in the center. A columnar block (12) is fixedly provided in the center of the inner wall of the inner heptagonal groove (11). Four protrusions (13) are fixedly provided in a ring array on the outer wall of the columnar block (12).

5. The anti-tampering structure of a desktop POS cash register according to claim 4, characterized in that, The connection between the screw head (9) and the threaded post (10) of the irregular screw (4) is provided with an annular indentation (14) that is easy to break when the sealing plate (3) is pried up.

6. The tamper-proof security structure for a desktop POS cash register according to claim 1, characterized in that, The hollow mounting box (2) and the sealing plate (3) are both made of magnesium-aluminum alloy.

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